global: Move remaining CONFIG_SYS_* to CFG_SYS_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/at91sam9261ek.h b/include/configs/at91sam9261ek.h
index dcc1cca..56247e3 100644
--- a/include/configs/at91sam9261ek.h
+++ b/include/configs/at91sam9261ek.h
@@ -11,16 +11,16 @@
 #define __CONFIG_H
 
 /* ARM asynchronous clock */
-#define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
-#define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* 18.432 MHz crystal */
+#define CFG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
+#define CFG_SYS_AT91_MAIN_CLOCK	18432000	/* 18.432 MHz crystal */
 
 #include <asm/hardware.h>
 
 /* SDRAM */
 #define CFG_SYS_SDRAM_BASE		0x20000000
 #define CFG_SYS_SDRAM_SIZE		0x04000000
-#define CONFIG_SYS_INIT_RAM_SIZE	(16 * 1024)
-#define CONFIG_SYS_INIT_RAM_ADDR	ATMEL_BASE_SRAM
+#define CFG_SYS_INIT_RAM_SIZE	(16 * 1024)
+#define CFG_SYS_INIT_RAM_ADDR	ATMEL_BASE_SRAM
 
 /* NAND flash */
 #ifdef CONFIG_CMD_NAND
@@ -42,6 +42,6 @@
 #define CONFIG_DM9000_NO_SROM
 
 /* USB */
-#define CONFIG_SYS_USB_OHCI_REGS_BASE		0x00500000	/* AT91SAM9261_UHP_BASE */
+#define CFG_SYS_USB_OHCI_REGS_BASE		0x00500000	/* AT91SAM9261_UHP_BASE */
 
 #endif